Improvement in windmills



S. H. RADWAY.

Wind-Mills. v No. 144,137. Patented0ct.28,1873.

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ATENT FFICE.

SAMUEL n. RADWAY, or BERLIN, WISCONSIN.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 1&4, 137, dated October28, 1873; application filed August 2?, 1873.

To all whom it may concern:

Be it known that I, S. H. RADWAY, of Berlin, in the county of Green Lakeand State of Wisconsin, have invented an Improvement in IVindmills, ofwhich the following is a specification:

The nature of this invention relates to an improvement in gearedwindmills, having for its object to so construct them that they cannotturn out of the wind when work or resistance is thrown on the verticalshaft, and to simplify the construction and cheapen the cost of suchmills. The invention consists in the peculiar arrangement of the uppersection of the up right shaft, its pinion, and the driving-wheel withrelation to the wind-wheel. shaft, as more fully hereinafter set forth.

Figure 1 is a side elevation. Fig. 2 is a longitudinal vertical sectionof the turn-table and gearing. Fig. 3 is a cross'section of the couplingat 00 0c in Fig. 1.

In the drawing, A represents the frame-work of the derrick or tower ofthe windmill, to the top of which is secured a bed-plate, cast with acircular flange or collar, B, on which is sleeved the cylindricalpendent double flange of the turn-table G, having bolted to it twostandards, D, in which is journaled the horizontal windwheel shaft E, towhich is keyed a bevel-geared driving-wheel, F, whose pitch-line is inthe upward prolongation of the axis of the turn-table. G is the lowersection of the vertical shaft, from which power is transmitted throughgears or pulleys to the machines to be driven, and is stepped andjournaled in the prolongation downward of the axis of the turn-table. His the upper section of the vertical shaft, having its lower endsquared, as at a, and inserted in a square socket formed in the upperpart of the coupling I), attached rigidly to the top of the shaft G,while its upper end passes through a bridge-tree bearing, I, on theturn-table, with a bevel-pinion, J, keyed on its extremity, which pinionmeshes With the driving-wheel F. An annular spring washer, 0, isinterposed between the seat of the turn-table and the top of thebed-plate sleeve, to lessen the friction between them, and facilitatethe movement of the former in the changes of direction in light winds.

The arrangement described throws the upper section II of the verticalshaft about onefourth of an inch to the foot out of the perpendicular,or half the diameter of the pinion, which is compensated or neutralizedby the loose fit of the coupling. The wind-wheel has no power to turnthe table around, so as to throw the wheel out of the wind, but when thewind changes its direction the table turns easily.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The arrangement of the geared drivingwheel of a windmill upon itsshaft so that its pitch-line will be at a prolongation of the axis ofits turntable, substantially as and for the purpose set forth.

2. The construction and arrangement of the drivingwheel F, pinion J, andshaft H, with relation to the driving-shaft E and vertical shaft G,substantially as and for the purpose set forth.

SAMUEL H. RADWAY.

itnesses H. P. hlERR-IAM, J. Lnncn.

